Abstract: A luminance indicated by an HDR signal is appropriately displayed. A first image processing unit (22) converts, in accordance with a maximum luminance level indicated by an HDR signal input to the first image processing unit (22), a gradation performance indicated by the HDR signal into a prescribed gradation performance according to a display panel (10), and a panel control unit (27) converts, in accordance with the maximum luminance level indicated by the HDR signal and a maximum luminance displayable by the display panel (10), a gradation value indicated by the HDR signal into a gradation value displayable by the display panel (10).

Abstract: A luminance indicated by an HDR signal is appropriately displayed. A first image processing unit (22) converts, in accordance with a maximum luminance level indicated by an HDR signal input to the first image processing unit (22), a gradation performance indicated by the HDR signal into a prescribed gradation performance according to a display panel (10), and a panel control unit (27) converts, in accordance with the maximum luminance level indicated by the HDR signal and a maximum luminance displayable by the display panel (10), a gradation value indicated by the HDR signal into a gradation value displayable by the display panel (10).

Abstract: Areas of a video signal that represent light emission are detected, the luminance levels at which said light emission areas are displayed are enhanced, emphasizing the areas, and the luminance stretching is controlled in accordance with the brightness of the surrounding environment, thereby increasing the resulting sense of brightness and improving the appearance of the video. A light emission detector counts pixels to generate a histogram of a prescribed feature quantity and identifies areas that fall within a prescribed range at the upper end of said histogram as being light emission areas. An area-active-control/luminance-stretching portion performs luminance stretching, increasing the luminance of a backlight portion and reducing the luminance of non-light emission areas of the video signal.

Abstract: The present invention makes possible video expressions with increased feeling of brightness and increased contrast feeling and to be able to prevent the feeling of brightness and the contrast feeling from becoming unnatural during execution of the multi-screen display. This video display device comprises: a control portion (a signal processing portion (1); an area-active-control/luminance-stretch-portion (4)) that controls a displaying portion (8) and a backlight portion (6); and a display instruction detection portion (13a) that detects display instructions of first and second input video signals. The control portion stretches and increases the luminance of the backlight portion (6), and also controls a light emitting portion enhancement processing according to a result of the detection.

Abstract: A light emission portion of a video signal is detected, and the display intensity of the light emission portion is enhanced for emphasis display. At this moment, the intensity stretch amount is controlled in accordance with a status of video black display, thereby increasing the feeling of brightness and hence improving the video quality. An area-active-control/luminance-stretching portion stretches and increases the intensity of a backlight portion on the basis of an index related to a brightness calculated, on the basis of a predetermined condition, from the input video signal, and lowers the video signal intensity of the non-light emission part excluding the light emission part. At this moment, the area-active-control/luminance-stretching portion changes, in accordance with a black display amount detected by a black detection portion, a control curve that defines the relationship between the index related to the brightness and the stretch amount.

Abstract: Areas of a video signal that represent light emission are detected, the luminance levels at which said light emission areas are displayed are enhanced, emphasizing said areas, and said luminance stretching is controlled in accordance with the brightness of the surrounding environment, thereby increasing the resulting sense of brightness and improving the appearance of the video. A light emission detecting portion (12) counts pixels in order to generate a histogram of a prescribed feature quantity of an input video signal and identifies areas that fall within a prescribed range at the upper end of said histogram as being light emission areas. On the basis of a brightness-related index computed from the input video signal on the basis of prescribed conditions, an area-active-control/luminance-stretching portion (14) performs luminance stretching, increasing the luminance of a backlight portion (16) and reducing the luminance of non-light emission areas of the video signal, i.e.

Abstract: A video display device increases a feeling of brightness and expresses a video with high contrast by detecting a part of a video signal that emits light, enhancing the display luminance of the light-emitting part, and displaying the part. A light emission detection portion (1) uses a prescribed feature quantity related to the brightness of an input video signal, predetermines the light emission quantity for the video signal on the basis of the relationship with the feature quantity, and detects the light emission quantity for each input video signal frame from the feature quantity. A backlight luminance stretch portion (3) stretches the light source luminance of the backlight according to the light emission quantity detected. A video signal luminance stretch portion (6) stretches the video signal according to the light emission quantity or the luminance distribution of the input video signal.

Abstract: The present invention makes possible video expressions with increased feeling of brightness and increased contrast feeling and to be able to prevent the feeling of brightness and the contrast feeling from becoming unnatural during execution of the multi display. This video display device comprises: a control portion (a signal processing portion (1); an area-active-control/luminance-stretch-portion (4)) that controls a displaying portion (8) and a backlight portion (6); and a display instruction detection portion (13a) that detects display instructions of first and second input video signals. The control portion stretches and increases the luminance of the backlight portion (6), and also controls a light emitting portion enhancement processing according to a result of the detection.

Abstract: A light emission portion of a video signal is detected, and the display intensity of the light emission portion is enhanced for emphasis display. At this moment, the intensity stretch amount is controlled in accordance with a status of video black display, thereby increasing the feeling of brightness and hence improving the video quality. A light emission detecting portion (12) generates a histogram obtained by integrating numbers of pixels for a predetermined feature value of an input video signal and detects, as a light emission part, a high-level area of a predetermined range of the histogram. An area-active-control/luminance-stretching portion (14) stretches and increases the intensity of a backlight portion (16) on the basis of an index related to a brightness calculated, on the basis of a predetermined condition, from the input video signal, and lowers the video signal intensity of the non-light emission part excluding the light emission part.

Abstract: The objective of the present invention is, by detecting a portion of a video signal that is light emission, enhancing the display luminance of the light emission portion and displaying the same, to increase a sense of brightness for the same so as to perform video image expression with high contrast. A light emission detecting portion uses a predetermined feature quantity related to brightness of an input video image signal in order to pre-define the amount of emitted light of the video image signal according to the relationship with a feature quantity so as to detect the amount of emitted light on the basis of the feature quantity for each frame of the input video image signal. A black detection portion, from the input video image signal, detects the amount of black to display on the basis of a predetermined condition.

Abstract: Areas of a video signal that represent light emission are detected, the luminance levels at which said light emission areas are displayed are enhanced, emphasizing said areas, and said luminance stretching is controlled in accordance with a set image quality mode, thereby producing consistently natural, high-quality visual imagery. A light emission detecting portion (12) counts pixels in order to generate a histogram of a prescribed feature quantity of an input video signal and identifies areas that fall within a prescribed range at the upper end of said histogram as being light emission areas. On the basis of a brightness-related index computed from the input video signal on the basis of prescribed conditions, an area-active-control/luminance-stretching portion (14) performs luminance stretching, increasing the luminance of a backlight portion (16) and reducing the luminance of non-light emission areas of the video signal, i.e. the areas other than the light emitting areas.

Abstract: The purpose of the present invention is to increase a feeling of brightness and express a video with high contrast by detecting a part of a video signal that emits light, enhancing the display luminance of the light-emitting part, and displaying said part. A light emission detection portion (1) uses a prescribed feature quantity related to the brightness of an input video signal, predetermines the light emission quantity for the video signal on the basis of the relationship with the feature quantity, and detects the light emission quantity for each input video signal frame from the feature quantity. A backlight luminance stretch portion (3) stretches the light source luminance of the backlight according to the light emission quantity detected. A video signal luminance stretch portion (6) stretches the video signal according to the light emission quantity or the luminance distribution of the input video signal.